Παραπομπή σε μορφή APA (7η εκδ.)

Scheler, M., & Funk, R. L. (1973). Formalism in ethics and non-formal ethics of values: A new attempt toward the foundation of an ethical personalism. Northwestern University Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Scheler, Max, και Roger L. Funk. Formalism in Ethics and Non-formal Ethics of Values: A New Attempt Toward the Foundation of an Ethical Personalism. Evanston: Northwestern University Press, 1973.

Παραπομπή σε μορφή MLA (8th εκδ.)

Scheler, Max, και Roger L. Funk. Formalism in Ethics and Non-formal Ethics of Values: A New Attempt Toward the Foundation of an Ethical Personalism. Northwestern University Press, 1973.